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PhotonIcs and Electromagnetics Research Symposium,
also known as Progress In Electromagnetics Research Symposium

PIERS Proceedings

Published by The Electromagnetics Academy

Published: 2015-08-28

Implementation of Three-dimensional Diffractive Gaussian Beam Analysis Method

By

Xiaodong Chen,

Xiaodong Chen

Queen Mary University of London, UK

Fangyuan Cheng,

Fangyuan Cheng

Beijing University of Posts and Telecommunications, China

Xiaoming Liu,

Xiaoming Liu

Beijing University of Posts and Telecommunications, China

Zejian Lu,

Zejian Lu

Beijing University of Posts and Telecommunications, China

Hai Wang,

Hai Wang

Beijing University of Posts and Telecommunications, China

Junsheng Yu

Junsheng Yu

Beijing University of Posts and Telecommunications, China

Proceedings of 2015 Photonics & Electromagnetics Research Symposium, Prague, July 6 - 9，Page(s)432-435

Abstract

This paper developed a 3-dimensional Diffractive Gaussian Beam Analysis (DGBA) method for the analysis of electrically large reflector antennas. Unlike a symmetrical 2-D struc- ture, it adopts the approach of full plane expansion, where the illuminating field over the whole input plane is decomposed into a set of elementary Gaussian beams. These Gaussian beams are propagated to the reflector. Reflected beams are treated with Geometric Optics, while edge diffraction is modeled using the canonical problem of a 3D Gaussian beam incident upon an opaque Kirchhoff half-screen. The output beam is a superposition of all reflected and diffracted elementary beams. The proposed analysis method is verified against a GRASP Physical Optics.

Citation

Xiaodong Chen, Fangyuan Cheng, Xiaoming Liu, Zejian Lu, Hai Wang, and Junsheng Yu, "Implementation of Three-dimensional Diffractive Gaussian Beam Analysis Method," Proceedings of 2015 Photonics & Electromagnetics Research Symposium, Prague, July 6 - 9，Page(s)432-435

References

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